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K-431 (Russian: К-431; originally the K-31) was a Soviet nuclear-powered submarine that had a reactor accident on 10 August 1985. [1] It was commissioned on 30 September 1965. The 1985 explosion occurred during refueling of the submarine at Chazhma Bay, Dunay, Vladivostok. [2] There were ten fatalities and 49 other people suffered radiation ...
Nikolai Vladimirovich Zateyev (Russian: Николай Владимирович Затеев; c. June 30, 1926 – 28 August 1998) was a Russian submariner and a Captain First Rank in the Soviet Navy, notable as the commander of the ill-fated Soviet submarine K-19 in July 1961 during the Hotel class submarine's nuclear-reactor coolant leak.
In January 1960, confusion among the crew during a watch change led to improper operation of the reactor and a reactor-control rod was bent. The damage required the reactor to be dismantled for repairs. The officers on duty were removed and Captain Panov was demoted. The submarine's ensign was hoisted for the first time on 12 July 1960. The ...
More than 30 people were over-exposed to radiation when the starboard reactor cooling system failed and the reactor temp rose uncontrollably. Emergency repairs ordered by the captain successfully cooled the reactor and avoided meltdown, but exposed the workers to high levels of radiation. [17] 8 Radiation accident in Morocco: 1984 March
The photos released Saturday by the Navy's Sixth Fleet show a tear on the starboard side of the aircraft carrier, near its stern. A pipe running along the side of the ship appears to be severely ...
A radiation alarm was transmitted only after a chemical officer and a doctor requested it. K-27 resurfaced and returned from training area to its home base using the starboard reactor. The submarine was placed at pier in Severomorsk and a depot ship continuously piped steam to the submarine to avoid cooling of heat-transfer metal in the reactor ...
Poorly placed temperature sensors indicated the reactor was cooling rather than heating. The excess heat led to the failure of a nuclear cartridge, which in turn allowed uranium and irradiated graphite to react with air. The resulting fire burned for days, damaging a significant portion of the reactor core.
In 2008 it conducted a study that found radiation, then publicly documented for the first time in 2023 the detection of radiation involving levels of radium-226 and strontium-90.